* * Data sheet DA01 VUW (ATEX) Differential pressure measuring device Pressure levels PN250/PN400. Models for use in explosive areas

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1 DB_EN_DA01_VUW_ATEX Rev. ST4-A 02/18 * * Data sheet DA01 VUW (ATEX) Differential pressure measuring device Pressure levels PN250/PN400 Models for use in explosive areas DA A DA B DA C DA D

features Highly corrosion resistant CrNi-steel model Use with aggressive media Highly durable Variable connection technology With fluid filling as an option Optional additional equipment such as

2 1 Product and functional description FISCHER Mess- und Regeltechnik GmbH 1 Product and functional description 1.1 Performance features Typical applications Chemical, petrochemical industry Process technology Marine and offshore technology Power plant technology Mechanical and plant engineering Important features Highly corrosion resistant CrNi-steel model Use with aggressive media Highly durable Variable connection technology With fluid filling as an option Optional additional equipment such as contact element or rotation angle encoder 1.2 Equipment versions The following illustrations depict typical combinations of the measuring cell, measured value display and contact elements. However, these can be freely combined according to the order code. Wherever this is not possible, this is clearly stated. For instance, a small measuring cell with an NG160 display and a contact element is also available. NG160 NG100 Large measuring cell Ø130 (mbar ranges) Small measuring cell Ø75 (bar ranges) Fig. 1: Device overview 2 / 20 DB_EN_DA01_VUW_ATEX

FISCHER Mess- und Regeltechnik GmbH Product and functional description 1 1.2.

1/4-18 NPT G½ 1/2-14 NPT 1/2-14 NPT 12 mm tube Fig.

1.2.2 Contact elements Limit switch in accordance with data sheet KE## for standard devices Low-action

Rotation angle encoder in accordance with data sheet KE09 KINAX 3W2 708-226D0 KINAX 3W2 708-226E0 KINAX

Trailing needle Fluid fillings Unit without contacts Paraffin oil, glycerine, silicon oil Unit with

3 FISCHER Mess- und Regeltechnik GmbH Product and functional description Process connection G½ G½ G½ G½ Inner thread Outer thread Cutting ringscrew connection 1/4-18 NPT 1/4-18 NPT G½ 1/2-14 NPT 1/2-14 NPT 12 mm tube Fig. 2: Options for the process connection Flange connection based on DIN with internal thread G½ Contact elements Limit switch in accordance with data sheet KE## for standard devices Low-action contacts Snap-actiocontacts Inductive contacts for ATEX devices Snap-action contacts Inductive contacts Rotation angle encoder in accordance with data sheet KE09 KINAX 3W D0 KINAX 3W E0 KINAX 3W D0 KINAX 3W E0 Fig. 3: Contact elements Special functions Marker needle Trailing needle Fluid fillings Unit without contacts Paraffin oil, glycerine, silicon oil Unit with low-action contacts Paraffin oil, silicon oil Units with magnetic spring contacts Silicon oil Unit with inductive contacts Paraffin oil, silicon oil Fig. 4: Special functions DB_EN_DA01_VUW_ATEX 3 / 20

1 Product and functional description FISCHER Mess- und Regeltechnik GmbH 1.2.

with panel mounting set with front ring Fig.

measuring cell (Ø75) and a display in the NG100 bayonet ring casing.

support construction for installation of the front panel. 1.2.

4 1 Product and functional description FISCHER Mess- und Regeltechnik GmbH Assembly Wall mounting Pipe mounting Panel mounting set type 1 Panel mounting set type 2 with panel mounting set with front ring Fig. 5: Assembly The panel installation fittings can only be used in devices with a small measuring cell (Ø75) and a display in the NG100 bayonet ring casing. WARNING Panel mounting set Due to the heavy weight, the operator needs to install a support construction for installation of the front panel Equipment features (overview) The following shows the configuration possibilities of the DA01 depending on the measuring cell used and the pressure level. Key available on request 4 / 20 DB_EN_DA01_VUW_ATEX

5 FISCHER Mess- und Regeltechnik GmbH Product and functional description 1 Small measuring cell Ø75 Measuring range Measured value display Ø100 Low-action contacts Snap-action contacts Inductive contacts Rotation angle transducer Trailing needle Marker needle Remote seal Pressure level bar bar bar bar bar bar bar bar bar PN250/PN bar bar bar bar Fig. 6: Small measuring cell Ø75 Measured value display Ø100 Measuring range Measured value display Ø160 Low-action contacts Snap-action contacts Inductive contacts Rotation angle transducer Trailing needle Marker needle Remote seal Pressure level bar bar bar bar bar bar bar bar bar PN250/PN bar bar bar bar Fig. 7: Small measuring cell Ø75 Measured value display Ø160 DB_EN_DA01_VUW_ATEX 5 / 20

6 1 Product and functional description FISCHER Mess- und Regeltechnik GmbH Large measuring cell Ø130 Measuring range Measured value display Ø100 Low-action contacts Snap-action contacts Inductive contacts Rotation angle transducer Trailing needle Marker needle Remote seal Pressure level mbar mbar mbar mbar mbar mbar PN mbar mbar mbar mbar Fig. 8: Large measuring cell Ø130 Measured value display Ø100 Measuring range Measured value display Ø160 Low-action contacts Snap-action contacts Inductive contacts Rotation angle transducer Trailing needle Marker needle Remote seal Pressure level mbar mbar mbar mbar mbar mbar PN mbar mbar mbar mbar Fig. 9: Large measuring cell Ø130 Measured value display Ø160 6 / 20 DB_EN_DA01_VUW_ATEX

FISCHER Mess- und Regeltechnik GmbH Product and functional description 1 1.3 Function diagram 1 2 4 3 5 6 7 7 8 8 Fig.

7 FISCHER Mess- und Regeltechnik GmbH Product and functional description Function diagram Fig. 10: Function diagram 1 Motion train 2 Transfer lever 3 Measuring shaft 4 Pressure transfer fluid 5 Separating membrane 6 Connecting rod 7 Measuring diaphragm 8 Pressure chamber 1.4 Design and mode of operation The pressures in the pressure chambers that are to be compared are each exerted onto a measuring membrane that can be rigidly connected using a connection rod. To compensate the static pressure, the space between the separating and measuring membrane is filled with a pressure transfer fluid. During pressure equalisation, the two measuring membranes are in an idle position. In case of pressure difference, the force acting on the membranes causes it to be moved towards the side of the lower pressure. The connecting rod transfers the deflection of the measuring membranes onto the transfer lever mounted to the measuring shaft. Proportional to the current differential pressure, the measurement shaft makes a rotational movement that the indicator translates into a rotation angle between 0 and 270. In the case of one-sided pressure by the measuring system above and beyond the measuring range, the over-pressure guard will be activated which supports the overlosaded membrane. DB_EN_DA01_VUW_ATEX 7 / 20

8 2 Technical Data FISCHER Mess- und Regeltechnik GmbH EXECUTION Nominal pressure 2 Technical Data 2.1 Allgemeines Measuring cell Application information DA01 V PN250 Ø75 Measuring ranges: bar to 0 25 bar Remote seals: It is possible to attach remote seals for all measuring ranges. The remote seals need to be designed for the displacement volume, the length of the cable and the application temperature. DA01 U PN400 Ø75 Measuring ranges: bar to 0 25 bar Remote seals: It is possible to attach remote seals for all measuring ranges. The remote seals need to be designed for the displacement volume, the length of the cable and the application temperature. DA01 W PN250 Ø130 Measuring ranges: 0 40 mbar to bar Limitations: Drag indicator measuring ranges 60 mbar Contacts / Transmitter measuring ranges 100 mbar Remote seals: It is possible to attach remote seals for measuring ranges 160 mbar. The remote seals need to be designed for the displacement volume, the length of the cable and the application temperature. 8 / 20 DB_EN_DA01_VUW_ATEX

9 FISCHER Mess- und Regeltechnik GmbH Technical Data Input variables Measuring variable Differential pressure in gaseous and fluid aggressive media. General Rated pressure of the measuring system Durability Measurement accuracy Temperature sensor 0.3 % / 10 C Zero-point adjustment Measuring ranges Max. static operating pressure One-sided over-pressure-proof up to the rated pressure of the measuring system resistance to under-pressure on the (+) and (-) side ±1.6 % of the measuring range ±25 % of the measuring range Small measuring cell Ø75 Large measuring cell Ø130 Measuring range Device model V U W bar 0 1 bar bar 0 2.5bar bar 0 6 bar 0 10 bar 0 16 bar 0 25 bar bar bar -1 3 bar -1 5 bar Measuring range Device model V U W 0 40 mbar 0 60 mbar mbar mbar mbar mbar mbar 2.3 Operating conditions Permissible ambient temperature C Admissible storage temperature C Admissible media temperature Max. 100 C Type of protection: IP 65 acc. to EN DB_EN_DA01_VUW_ATEX 9 / 20

10 2 Technical Data FISCHER Mess- und Regeltechnik GmbH 2.4 Construction design Materials Measured value display Material Material no. EU AISI Bayonet ring housing NG100, NG160 CrNi steel Process connection (all models) CrNi steel L Intermediate plate AlMgSiPb HARD-COAT Seals (O-rings) FKM Motion train CrNi steel Dial face and needle Aluminium, painted, printed Inspection disk Safety laminated glass MB = Measurement range Materials (media-contacting) Design of the measuring system (R) Material Material no. EU AISI Pressure caps CrNi steel L Separation membranes CrNi steel Ti Design of the measuring system (G) Material Material no. EU AISI Pressure caps CrNi steel L Separation membranes Hastelloy C276 Process connection Material Material no. EU AISI Connecting piece and port CrNi steel L Cutting ring screw connections CrNi steel Assembly Wall mounting Pipe mounting Panel mounting set type 1 Panel mounting set type 2 Flanged assembly plate Flanged assembly plate and attachment bracket Panel installation fittings for units with a small measuring cell (Ø75) and NG100 bayonet ring casing. Front ring and support construction 10 / 20 DB_EN_DA01_VUW_ATEX

11 FISCHER Mess- und Regeltechnik GmbH Technical Data Additional Attachments Contact elements Limit signal transmitters (contacts) and capacitive rotation angle transducers with an output signal proportional to the angular position can be fitted into a housing augmented by a corresponding bayonet ring connector. A certain minimum pressure level is required to operate this kind of contact element, which is why there is a lower limit for the mbar measuring ranges. This limit depends on the model type and is stated in the section General. The measuring deviation increases by ±0.5% per contact when the contacts are driven and switched. For more information and the order key, please refer to the data sheet: for limit switch in data sheet KE for rotation angle converter in the data sheet KE Fluid charging Under aggravated operating conditions, such as vibrations and extreme pressure fluctuations, or in order to avoid condensation forming if used outdoors, the casing can be filled with the following fluids depending in the type of contacts installed: without contacts Low-action contacts Magnetic spring contacts Inductive contacts Rotation angle transducer Glycerine, silicon oil Silicon oil Silicon oil Paraffin oil no filling possible Marker needle A settable red marker can be attached to the scale to clearly show a certain pressure (limit value) Trailing needle The railing needle is 'dragged' with the measured value indicator. As there is no fixed connection between the two needles, one-off maximum values are stored. The trailing needle can be reset using an adjusting dial in the window. Trailing needles cannot be used in conjunction with contacts. A certain minimum pressure level is required to move the drag indicator, which is why there is a lower limit for the mbar measuring ranges. This limit depends on the model type and is stated in the section General Shut-off fitting 3-spindle valve block PN 100, DN 5, can be directly flanged Type DZ3600SV2700 Material Functions: Shut-off, pressure compensation DB_EN_DA01_VUW_ATEX 11 / 20

attached to the side and/or with a Han 7D connector on th epower plant models.

11: Cable socket Cable socket HAN 7D Number of screw terminals Rated current Rated voltage Cable diameter Cable screw connection 6 +

12 2 Technical Data FISCHER Mess- und Regeltechnik GmbH Electrical connection In the case of devices with additional electronic equipment, the connection is realised using a cable socket attached to the side and/or with a Han 7D connector on th epower plant models. The pin assignment depends on the ordered mode and is stated in the data sheet KE or KE09. Cable socket Fig. 11: Cable socket Cable socket HAN 7D Number of screw terminals Rated current Rated voltage Cable diameter Cable screw connection 6 + 2PE See data sheet KE 250 V up to 1.5 mm 2 with wire protection M20 x 1.5, terminal range 7 13 mm HAN 7D No. of crimp contacts 7 + PE Rated current See data sheet KE Rated voltage 50 V Cable diameter 1 mm 2 Cable screw connection M20 x 1.5, terminal range 7 13 mm 12 / 20 DB_EN_DA01_VUW_ATEX

13 FISCHER Mess- und Regeltechnik GmbH Technical Data 2 Small measuring system (Ø75) Dimensional drawings All dimensions in mm unless otherwise stated 90 (with installed contacts) (with installed contacts) Ø NG100 Ø101 NG160 Ø161 Cable socket 132 Flange based on DIN EN Wall mounting plate Ø G½ 7/16 UNF 54.4 R Fig. 12: Dimensional drawing (Small measuring system Ø75) 2" pipe mounting (possible for all models) Spacer sleeve Round steel bracket The pipe assembly set is also available as accessory. 2'' pipe (DN50) Attachment kit for round steel bracket Pipe mounting plate Fig. 13: Pipe mounting DB_EN_DA01_VUW_ATEX 13 / 20

14 2 Technical Data FISCHER Mess- und Regeltechnik GmbH Large measuring system (Ø130) (with installed contacts) (with installed contacts) Ø NG100 Ø101 NG160 Ø161 Cable socket 170 Flange based on DIN EN Wall mounting plate G½ Ø11 7/16 UNF 54.4 Fig. 14: Dimensional drawing (Large measuring system Ø130) Installation of front panel type 1 (only small measuring system Ø75 and NG100 display) R d2 d1 Holding plate Front ring 120 d3 d4 Assembly bracket Bayonet ring with connecting bracket The front plate thickness must be min. 2 mm. NG100 d1 d2 d3 d Fig. 15: Installation of front panel with panel fittings 14 / 20 DB_EN_DA01_VUW_ATEX

15 FISCHER Mess- und Regeltechnik GmbH Technical Data 2 Installation of front panel type 2 The front plate thickness must be min. 2 mm. d2 d1 Front ring 120 d3 d4 Bayonet ring with connecting bracket A suitable steel construction must be used to ensure that the front plate can bear the weight of the DA03. NG100 NG160 d1 d2 d3 d Examples: Assembly on a mounting plate Mounting to a 2'' pipe Fig. 16: Installation of front panel with front ring DB_EN_DA01_VUW_ATEX 15 / 20

16 2 Technical Data FISCHER Mess- und Regeltechnik GmbH Contact elements NG100 = 90 NG160 = 120 NG100 = 138 NG160 = Fig. 17: Dimensional drawing contact devices Shut-off fitting with inner spindle thread 2 Cutting ring connection G3/8 for 12 mm pipe 3 1 Valve open ~155 ~110 DA03 2 ~ M10 Process (Connection clearance) ~147 Fig. 18: Shutoff valve DZ3600SV / 20 DB_EN_DA01_VUW_ATEX

17 FISCHER Mess- und Regeltechnik GmbH Order Codes 3 3 Order Codes Code no D A 0 1 Type Measuring range Process connection Output signal Operating voltage Measuring unit Measured value display / contact elements Electrical connection Assembly Device model: [1] Pressure level Measuring cell V PN250 Ø75 U PN400 Ø75 W PN250 Ø130 Measuring range: Small measuring system Ø75 [2.3] Measuring range Device model V U W bar bar bar bar bar bar bar bar bar bar bar bar bar DB_EN_DA01_VUW_ATEX 17 / 20

18 3 Order Codes FISCHER Mess- und Regeltechnik GmbH Large measuring system Ø130 [2.3] Measuring range Device model V U W mbar mbar mbar mbar mbar mbar C mbar mbar mbar mbar mbar Design of the measuring system: [4] R Pressure chamber CrNi steel (AISI 316L) Measuring membrane standard G Pressure chamber CrNi steel (AISI 316L) Measuring membrane Hastelloy C276 Process connection: [5.6] 03 Flange connection based on DIN EN with internal thread G½ 04 Connecting piece G½ with inside thread 1/4-18 NPT 05 Connecting piece G½ with inside thread 1/2-14 NPT 13 Connection shanks G½ with external thread G½ 14 Connecting port G½ with outer thread 1/4-18 NPT 15 Connecting port G½ with outer thread 1/2-14 NPT 27 Cutting ring connection in brass for 12 mm pipe Measured value display: [7] L M Bayonet ring housing NG100 Bayonet ring housing NG160 Assembly: [8] W R T G Wall mounting Pipe mounting Panel installation fittings (only a small measuring system Ø75, NG100 measured value display without contact elements) Front ring for panel mounting 18 / 20 DB_EN_DA01_VUW_ATEX

19 FISCHER Mess- und Regeltechnik GmbH Order Codes 3 Fluid filling: [9] 0 Without fluid filling 1 Glycerine 4 Paraffin oil 5 Silicon oil Special functions: [10] 0 Without special function 1 Adjustable marker needle 2 Resettable drag needle Contacts/transmitters/ATEX: [11.12] ATEX model 0A 1B 1C 2D Limitations Non-electrical unit (without switch contacts) Unit with magnetic spring contacts KE##M##0B4H2 Simple electrical operating equipment acc. to DIN EN II 2G Ex h IIC T4 Gb II 2D Ex h IIICT95 C Db II 2G Ex h IIC T4 Gb Unit with inductive contacts KE##I##0C0H2 II 2G Ex h IIC T4 Gb II 2D Ex h IIIC T95 C Db Unit with capacitive rotation angle transducer KE0905#9 II 2G Ex h IIC T4 Gb A minimum operating pressure, which not all measuring ranges achieve, is required to activate a contact element or a drag indicator. Please also note the information about the equipment features [} 4]. 3.1 accessories Order no. Planned measures Material DZ3600SV2700 Triple valve block DN5 PN420 Flange connection acc. to DIN EN Cutting ring screw connections 12 mm pipe Including assembly set Order no. Planned measures Type Isolating unit amplifier 1-channel 24 V DC TS500Ex-ia-1R Isolating unit amplifier 2-channel 24 V DC TS500Ex-ia-2R Isolating unit amplifier 1-channel 230 V AC TS500Ex-ia-1R Isolating unit amplifier 2-channel 230 V AC TS500Ex-ia-2R Universal supplier isolator ST500Ex Universal supplier isolator ST500Ex-10-0 DB_EN_DA01_VUW_ATEX 19 / 20

3 Order Codes FISCHER Mess- und Regeltechnik GmbH 3.2 Information about the document This document contains all technical data about the device.

20 3 Order Codes FISCHER Mess- und Regeltechnik GmbH 3.2 Information about the document This document contains all technical data about the device. Great care was taken when compiling the texts and illustrations; Nevertheless, errors cannot be ruled out. Subject to technical amendments. FISCHER Mess- und Regeltechnik GmbH Bielefelder Str. 37a D Bad Salzuflen Tel Fax web : info@fischermesstechnik.de 20 / 20 DB_EN_DA01_VUW_ATEX

* * Data sheet DA A (ATEX) Differential pressure measuring device for potentially explosive areas

* * Data sheet DA A (ATEX) Differential pressure measuring device for potentially explosive areas 09015062 DB_EN_DA10_ATEX Rev. ST4-A 03/18 *09015062* Data sheet DA10... 0A (ATEX) Differential pressure measuring device for potentially explosive areas Gas explosion protection Zone 1 and 2, gases and